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Finding the Fourth Proportional to 470,048.40, 705,194.10 and 203,747.40

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Solution

The fourth proportional to 470,048.40, 705,194.10 and 203,747.40 is: 305,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,048.40 : 705,194.10 = 203,747.40 : x
  2. Step 2: Convert to fraction form
    470,048.40/705,194.10 = 203,747.40/x
  3. Step 3: Cross multiply
    470,048.40x = 705,194.10 × 203,747.40
  4. Step 4: Simplify right side
    470,048.40x = 143,681,464,370.34
  5. Step 5: Solve for x
    x = 143,681,464,370.34/470,048.40
  6. Step 6: Final answer
    x = 305,673.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.